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Published on: December 3, 2019
Bone mineral density in human immunodeficiency virus-1 infected men with hypogonadism prior to
J Teichmann1, U Lange, T Discher
1Department of Internal Medicine, Medical Clinic C, Ludwigshafen, Germany. J.Teichmann@st.josefskrankenhaus.de
Insights
HIV-infected men with hypogonadism exhibit significantly altered bone metabolism, including reduced bone formation and increased resorption. This hormonal imbalance contributes to decreased bone mineral density (BMD) before highly-active antiretroviral therapy (HAART).
Area of Science:
- Endocrinology
- Bone Metabolism
- HIV Medicine
Background:
- Bone metabolism alterations are documented in HIV-infected patients.
- Sex steroids significantly impact bone mass and turnover.
- Hypogonadism is prevalent in HIV infection.
Purpose of the Study:
- To investigate the relationship between hypogonadism and bone metabolism in male HIV-infected patients.
- To assess bone mineral density (BMD) and markers of bone turnover in relation to testicular function.
- To evaluate bone health in HIV-positive males prior to highly-active antiretroviral therapy (HAART).
Main Methods:
- Cross-sectional study of 80 male HIV-infected patients and 20 healthy controls.
- Analysis of serum and urine for calciotropic hormones and bone metabolism markers.
- Bone mineral density (BMD) assessment using dual-energy X-ray absorptiometry (DXA).
Main Results:
- 40% of HIV-infected patients presented with hypogonadism.
- Hypogonadal patients showed decreased serum osteocalcin and increased urinary crosslinks (p < 0.05).
- Reduced BMD and a dissociation between bone formation and resorption were more pronounced in hypogonadal patients.
Conclusions:
- Habitual hypogonadism is a significant factor affecting bone metabolism in male HIV-positive patients.
- Hormonal imbalances associated with hypogonadism contribute to bone loss.
- These findings highlight the importance of assessing gonadal function in HIV management.
Abstract:
Alterations of bone metabolism have been observed in numerous studies of HIV-infected patients. Sex steroids are known to profoundly influence bone mass and bone turnover. Hypogonadism is common in HIV-infection. Therefore, we performed a cross sectional study of 80 male HIV-infected patients without wasting syndrome, and 20 healthy male controls, in whom we analyzed urine and serum samples for both calciotropic hormones and markers of bone metabolism and of endocrine testicular function. Bone mineral density (BMD) was assessed by dual-energy X-ray absorptiometry both in the lumbar spine and Ward's triangle of the left hip. None of the patients received highly-active-antiretroviral-therapy (HAART). Compared to eugonadal HIV-infected patients, subjects with hypogonadism (n = 32; 40%) showed statistically significant decrease of serum osteocalcin (p < 0.05) and elevated urinary excretion of crosslinks (p < 0.05). However, we found 13 and 15, respectively, patients with osteopenia (t-score -1.0 to -2.5 SD below normal) of the lumbar spine. The dissociation between bone formation and resorption and the reduction of of BMD (p < 0.05) is stronger expressed in patients with hypogonadism. Habitual hypogonadism appears to be of additional relevance for bone metabolism of male HIV-positive patients prior to HAART.
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